What is �(4)f\left(4\right)f(4) for the function �(�)=5�+8f\left(x\right)=5x+8f(x)=5x+8

Answer 1

To find f(4), we substitute x = 4 into the function f(x) = 5x + 8:

f(4) = 5(4) + 8
= 20 + 8
= 28

Therefore, f(4) = 28.

Now we can find (4)f(4):

(4)f(4) = 4 * 28
= 112

Therefore, �(4)f\left(4\right)f(4) = 112.